Isidorus the Younger

The Dome Collapses. May 7, 558.

On 23 February 532, only a few weeks after the destruction of the second basilica, Emperor Justinian I decided to build a third and entirely different basilica, larger and more majestic than its predecessors, built by Constantius II and Theodosius II. Justinian chose physicist Isidore of Miletus and mathematician Anthemius of Tralles as architects; Anthemius, however, died within the first year of the endeavor. The construction is described in the Byzantine historian Procopius’ On Buildings (Peri ktismatōn, Latin: De aedificiis). Columns and other marbles were brought from all over the empire, throughout the Mediterranean. Even though they were made specifically for Hagia Sophia, the columns show variations in size. More than ten thousand people were employed. This new church was con...

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